/Engine/Plugins/Online/OnlineSubsystem/Source/Public/OnlineSubsystemTypes.h
typedef [TMap](API\Runtime\Core\Containers\TMap)< [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< const [FOnlinePartyId](API\Plugins\OnlineSubsystem\FOnlinePartyId) >, ValueType, [FDefaultSetAllocator](API\Runtime\Core\Containers\FDefaultSetAllocator), [TOnlinePartyIdMapKeyFuncs](API\Plugins\OnlineSubsystem\TOnlinePartyIdMapKeyFuncs)< ValueType >> TOnlinePartyIdMap